iPhone 3GS Iphone 3GS 4.0 or 4.0.1?

Discussion in 'iPhone' started by thornet, Aug 12, 2010.

  1. thornet

    thornet New Member

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    Hello everyone I was thinking to downgrade from 4.0.1 to 4.0..?

    Do you know if there are any major updates from 4.0 to 4.0.1?
    I recently noticed my reception went lower when upgraded...

    And are some applications/Cydia Apps only compatible with 4.0 and not 4.0.1?

    Regards Anton

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  2. Lux2GS

    Lux2GS Well-Known Member

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    All which work with 4.0 also work with 4.0.1 - I recommend you to upgrade to 4.0.2, as a really dangerous hole in the firmware gets patched, which if you don't patch, can get you "viruses"
  3. jordor07

    jordor07 Member

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    you have the same reception you did before. 4.0.1 fixes the system the iphone uses to determine signal, because the old way showed 2 or 3 bars more than what you had. (I think apple did that on purpose to make att look better

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